basic-mouse-event-polyfill-phantomjs/index.js

This is a simple polyfill to help PhantomJS with handling Mouse Events

(function (window) {
  try {
    new MouseEvent('test');
    return false; // No need to polyfill
  } catch (e) {
    // Need to polyfill - fall through
  }

  // Polyfills DOM4 MouseEvent

  var MouseEvent = function (eventType, params) {
    params = params || {
        bubbles: false,
        cancelable: false,
        ctrlKey: false,
        altKey: false,
        shiftKey: false,
        metaKey: false
      };
    var mouseEvent = document.createEvent('MouseEvent');
    mouseEvent.initMouseEvent(eventType, params.bubbles, params.cancelable, window, 0, 0, 0, 0, 0, params.ctrlKey, params.altKey, params.shiftKey, params.metaKey, 0, null);

    return mouseEvent;
  };

  MouseEvent.prototype = Event.prototype;

  window.MouseEvent = MouseEvent;
})(window);